Windmill



2 Sheets-Sheet 1. M. C. ROBBINS. `.VVINDMILL- Patented Oet. 7, 1890.

(No Model.)

(No Model.) 2 Sheets-Sheet 2.

M. C. ROBBINS- WINDMILL.

No. 437,897. Patented oct. 7, 1890.

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y i UNITED STATES PATENT OEEICE.

MICHAEL O. ROBBINS, OF FREEMAN, MISSOURI.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 437,897, dated October 7, 1890.

Application led May 8, 1890. Serial No. 351,020. (No model.)

' liable.

The invention consists in the construction and novel combination and arrangement of parts, hereinafter fully described, and particularly pointed out in the claim.

In the drawings, Figure 1 is a perspective view of a windmill constructed in accorde ance with this invention. Fig. 2 is a central vertical sectional view. illustrating the position of the parts when the wheel is thrown out of the wind. Fig. 4 is a vertical sectional view of the rotating frame, the section being taken at right angle to Fig. 2 and the main shaft and the weighted lever beingillustrated in elevation. Fig. is a detail perspective View of one of the sections of the casting.

Referring to the accompanying drawings, 1 designates a tower having rotatively mounted therein a vertical tube 2, carrying upon its upper end a frame 3, that supports the operative parts of the machine. The frame 3 consists of a casting 4 composed of similar Sections 5 and side pieces 6 secured to the sections 5 of the casting 4, and provided at their upper ends with bearings 7, in which is mounted a main shaft 8. The casting 4 has the lower ends of the sections bolted together, and their inner faces are provided with oppositely-disposed curved grooves which register and form a central vertical hole or bore 9, which receives the upper end of the tube 2. The upper ends 10 of the casting eX- tend vertically from the lower portion that is bolted together, and they are arranged parallel and have suitably secured to them the side pieces 6, and are provided with recesses Fig. 3 is a plan view' 11 in their outer faces to receive the said pieces 6. The shaft 8 has rigidly mounted upon it a wheel l2, which may be of any desired construction, and is braced by rods 13, extending from the outer ring 14 of the wheel to a disk or iiange 15, secured to the end of the shaft, which is extended beyond the wheel; and the said shaft'has secured to it an eccentric 16, that is arranged between the side pieces 6 and is provided with a circumferential groove 17, to receive the upper end or ring 18 of a pitman 19, that has its lower end connected to the link-rod 20 of a pump, and as the shaft is rotated by the wheel the eccentric imparts a vertical reciprocating motion to the lift-rod 20. The eccentric is secured to the shaft by set-screw 2l, that passes through tianges 22, extending from each side of the eccentric and forming bearings. Hinged to one of the side pieces 6 is a vane 23, that is provided upon the upper edge of its inner end with a pintle 24, engaging an eye 25, and having extending downward from its lower edge an inclined bar 26, the lower end of which terminates in a pintle and engages an eye 27, secured to the upper end of one of the casting-sections.

The Wheel is held in the wind by a weighted lever 28, fulcrumed upon one end of a crossbar 29 and having its upper end 30 connected by a link-rod 31 with an eye 32 of the vane.

23, whereby the vane is normally held at right angles to the plane of the wheel to keep the latter in the wind. rlhe lever 28 is provided with an adjustable weight, and a cross-bar 29 is secured to the side pieces 6 and serve to support and strengthen the frame 3. The wind-wheel is controlled from the base of the tower by a cord 33, which passes up through the vertical tube 2 and around a pulley 34 and has one end connected to the vane by means of the eye 32, to which the link-rod 31 is connected.

In order to prevent the parts being racked when the wheel is thrown into the wind, a rubber cushion 34 is secured to the frame 3 and interposed between the vane and the adjacent side piece 6, to the latter of which it is secured.

From the foregoing description and the ac- ICO companying drawings the construction, optheir outer faces. and the side pieces secured eration, and advantages of the invention Will to the casting and arranged in the recesses,

be readily understood. l[he shaft j ournaled in the frame and carrying I5 Having thus described my invention, I awheel, the eccentric mounted upon the shaft, 5 claimand the pitman, substantially as described.

In a Windmill, the combination of the ver- In testimony that I claim the foregoing as tical tube rotatively mountedv in the tower7 my own I have hereto affixed my signature in the frame secured to the upper end of the presence of two Witnesses. v

tube and comprising the similar sections of MICHAEL C. ROBBINS. 1o the casting, bolted together and having the Vitnesses:

central opening or hole 9, and provided with F. W. COOMBS,

u pWard-proj ectin g ends l0, having recesses in D. B. ORMISTON. 

